[SOLVED] Incoming msgs not being delivered

Hi.
Running FC5, 4.5.6_GA_1044.FC5_20070706162711 FC5 FOSS edition
and finding a problem I can't run down by searching here.
I can mail out as a user fine, and remote recipient gets message.
But sending IN a new message, or replying to Zimbra user results in msgs being put in deferred queue.
I have turned off AV/AS server, and done severa; zmcontrol stop/starts...
No other service answering when i turn off Zimbra, and telnet 25...nothing answers.

;; ADDITIONAL SECTION:
j.root-servers.net. 15540 IN A 192.58.128.30
k.root-servers.net. 15540 IN A 193.0.14.129
l.root-servers.net. 15540 IN A 198.32.64.12
m.root-servers.net. 15540 IN A 202.12.27.33
a.root-servers.net. 15540 IN A 198.41.0.4
b.root-servers.net. 15540 IN A 192.228.79.201
c.root-servers.net. 15540 IN A 192.33.4.12
d.root-servers.net. 15540 IN A 128.8.10.90
e.root-servers.net. 15540 IN A 192.203.230.10
f.root-servers.net. 15540 IN A 192.5.5.241
g.root-servers.net. 15540 IN A 192.112.36.4
h.root-servers.net. 15540 IN A 128.63.2.53
i.root-servers.net. 15540 IN A 192.36.148.17

;; ADDITIONAL SECTION:
l.root-servers.net. 12658 IN A 198.32.64.12
j.root-servers.net. 12658 IN A 192.58.128.30
i.root-servers.net. 86210 IN A 192.36.148.17
f.root-servers.net. 86210 IN A 192.5.5.241
m.root-servers.net. 86210 IN A 202.12.27.33
k.root-servers.net. 86210 IN A 193.0.14.129
g.root-servers.net. 86210 IN A 192.112.36.4
c.root-servers.net. 86210 IN A 192.33.4.12
d.root-servers.net. 86210 IN A 128.8.10.90
e.root-servers.net. 86210 IN A 192.203.230.10
b.root-servers.net. 86210 IN A 192.228.79.201
a.root-servers.net. 86210 IN A 198.41.0.4
h.root-servers.net. 86210 IN A 128.63.2.53

Yes, it's a DNS problem. I guess this is a new install? As you're behind a NAT device (or firewall) you will need to install a local DNS server so that Zimbra (postfix) can resolve the local IP address of your server. Check the Split DNS setup in the wiki (or search the forums for 'DNS in a Nutshell'), it's fairly straightforward and you should be up and running in no time.

Thanks...yes, new install. Plus external DNS just got resolved this morning.
Yecch. this one is messy.
I've got a WinServer doing DNS over on that 192.168.150.xx address, so I'll look at setting that up properly.
(My Windows admin is out of town, so this might be Tuesday, now.)

Thanks Bill -
have a good week,
rick
PS. I looked at that splitDNS a week ago, and was hoping that I wouldn't have to do it.

The only other way would be to uncheck enable DNS lookups-but then you need to have a 'relay for external delivery'.
Or the uglier messing with zimbraMailTransport...
-but you have a DNS box internally so just don't.

Thanks mmorse - I did figure that I could just get the linux box to take care of itself. And it worked out fine. I have a second/virtual domain to add when we go live.
I should be able to add another zone like this, for the second domain, right?

Nutshell article had few typos, and the wiki article just seemed more streamlined.
thanks,
rick